Odpowiedzi

2010-01-27T17:15:13+01:00
A) 3 1/3 + ( - 4,8 ) =10/3 - 4,8 = 10/3 - 4 8/10 =
= 10/3 - 4 4/5 = 10/3 - 24/5 = 50/15 - 72/15 = - 22/15 =
=-1 7/15

b) -2,8 +(-11 1/4 ) = -2,8 - 11 25/100 = -2,8 - 11,25 =
= -(2,80 + 11,25) = -14,05
1 5 1
2010-01-27T17:15:56+01:00
A) 3 1/3 + ( - 4,8 ) =3 1/3-4,8= 3 1/3 - 4 4/5=3 5/15 - 4 12/15=-1 7/15

b) -2,8 +(-11 1/4 ) =-2,8-11,25=-14,05